Suction cleaner



Jun@ m w25, @542,597

A. H. BATES I SUCTION GLEANER Filed Nay 3.3, 1922 i2 SYasJwm-Sheat 2nvrvi'or Aiber' H. Eaj'es.

Patented June 16, 1925*,

ALBERT H. BATES, OF ELGIN," ILLINOIS,

A 1,542,597 PATENT' OFFICE. k

ASSIGNOR, BY.` -MFSNE ASSIGNMENTS, T THE HOOVER COMPANY, 0F NORTHCANTON, OHIO, A CORPORATION 0F OHIO.

SUCTION CLEANER.

Application illed May 13, 1922. Serial No. 569,566.

To uit whom 'it may concern:

Be it known that I, ALBERT H. BATEs, a

citizen of the United States, residing at Elgin, in the county of'Kaneand State of Iliinois, have invented certain new and uselul Improvementsin Suction Cleaners, of which the following is a specification.

-My invention relates in general toimprovements in suction cleaners andin particularl to the hand-propelled, 'light-weight,"

motor-driven-brush type, and has for an ob.- jectv the provision of acompact, eiiicient, hand-controlled suction-cleaner capable of beingadjusted to the particular requirements of different weights andtypes ofioor coverings without impairing the effectiveness of the machine.

Another object is to provide a suction- I cleaner of the 'type havingmore than. one

fan with a nozzle-mouth having uniform suction throughout its length andwith new and improved means for securing dust-bag thereto.

A further object is to provide a suctioncleaner with a new and improvedform of support.

Other objects will become apparent after .a study of the followingdescription and appended claims, and in the drawings forming a partthereof, wherein like reference characters referto the same parts.

In the drawings: i

Figure 1 is a plan view of my invention with parts shown by dottedlines;v

Figure 2 is a side elevation of the same;

Figure 3 is La detail view of the b adapter plate; with the bag ring`attache thereto [tor-casing l0 inthe formof a h lindrical body providedat `each end with an adjustment; and

Figure 4 is a front elevation of my invention illustrating a modifiedform ofnozzle Figure 5 is a fragmentary plan view of the same.

`In the drawings, a preferred embodiment ofy my inventionis showncomprising a mool ow cyoutwardlv-flaring. flange 11 to which are securedthe fan chambers 12, 12. Each fanA chamber encloses a fan-rotor 13mounted on the motor-shaft y14.

/In order. to lend compactness to the machine, the bearings for themotor shaft. are mounted in bosses 15 extending into the fanchambers andreceived" in counter-bores mounted on 'one formed in the fan rotors.Each fan-chamber is providedwith an inlet opening 20 coaxial with themotor-shaft and fan-rotors and with 'a discharge-conduit 16 having aflanged terminus' 17 formin an outlet 18.`

Positioned on the outsi e o-f each fanchamber is a conduit 19 connectingwith the inlet o ening 2O and extending downwardly and' orwardlylalong.Y the fan-chambers. Each conduit 1s provided with an aperture v21registerin with the inlet-openings 20 in the fan-cham ers, which isnormally closed by a plate 22 which is preferably secured to the conduitwall by means of a screw 23 engaging a resilient ear formed on the plateand a spring cli)` 23'.. Y

In order toa just the suction-nozzle relatively tothe rest of themachine and accordingly to the fioor upon which the machine' issupported, Ihaveprovided a separate casting 24, the forward end of whichforms the suction-nozzle 25 and is provided with a suction-mouth 26'formed in 'the bottom thereof and havin apertured ends adapted toreceive adjusts. le brush-supporting devices 27, the details of whichform no part of m resent invention.

ounted in the said brush-supporting de-y rovi'ded with,

vices is a rotatable brush 28 a ulley 29 over which is trained a' belt30, w ich in turn is driven by a pulley 31 end of the motor-shaft 14. 1'L In or er to connect the suction-nozzle 25 with the conduits 19,19,the casting 24, is'

provided with two hollow portions 32, 32, each of which dares forwardlyin a symmetrical fashion so as to extend longitudinally at the forwardend one-half the length of down travel the outer rear edge of each porftion 32, 32, is provided with a flange 35 1 which contacts with theVoutside wall ofthe conduit 19 with which it connects. To insureatightjoint between the meeting walls of the conduits 19, 19, and the portions32,

32, of the casting 24, I have found it advantageous to provide. somepositive means Afor producing a firm contact. Xs an example of one wayin which this may be accomplished, I have shown the outside wall of eachportion 32 formed with a boss 36 in which a pin 37 is firmlyv mounted.

The pin 37 extends v'through` a slot 38 formed in a .lug 39on theoutside wall of -each conduit 19, and has secured -on the end thereof anut 41 between `which and the lug suction-nozzle 25.

As a means 'for propelling the machine over a floor covering I haveprovided a handle 48 provided with a bail 49, each end of which isrotatably mounted on a pin 50 supported on the outside wall of thefanchamber and a flanged-member 51 mounted on and curved to conform withthe conduit 19. In order that the front or rear .end of the machine canbe raised as may be desired, or the handle locked in an upright positionfor convenience in storing, the anged member 51 is provided with notches52 and 53 adapted to receive a pin 54 firmly fixed in the free end of alink 55 pivoted at 56 tol the handle bail. When the pin 54 is positionedin the notch 52 the handle will be locked in the upright position andmay be stored in 'aminimum amount of space.

The notch 53' is of greater size and provides for an amount of play ofthe pin 54 therein corresponding to the angular movement of the handleduring the normal operating of the machine'.

When it is desired to lower the handle toy a osition parallel with theioor, the pin is li ted Ifrom the notch in which it happens to be, thelink 55 hanging freely from the bail.

By rotating the link 55 in a counter-,clockwise direction until it liesabove the pin 50, the entire controlling` mechanism may be 'thrown outof operation so that the p1n'54 cannot engage the notches 52 and 53.

For ease in emptying and for othery reason,

I itis desirable that the dust-collecting bag be made with but a singleopening having relatively-lar'ge dimensionsl With this construction itispossible to ejectl the matted masses of dust, lint, )and litter that-arecollected. fWith the construction shown, it is v possible to easilydetach the bag from-the machine and place the bag ring ,onl a sheet ofpaperewhere it can beheld by the operators eet. In this position the bagcan be .shaken in a cleanly manner since the collected dirt is preventedfrom scattering. In order to use a. bag of this construction inconnection with a twin-fan -machine having two discharge-openings, Ihave provided an adapter plate 56 in the formy of a iiat member providedwith two apertures 57, 57, adapted to register with the dischargeopenings 18, 18, and secured to the ianged termini 17, 17, by means ofscrews 58. This plate is provided at each end thereof with .an ear 59composed o a portion 6U bent at right-angles to the main-body of theplate and a portion (il bentback parallel thereto, and to the innersurface of which is secured a leaf-spring 62 by means of the rivet 63.'lfhe flange and spring co-act to guide and hold in position thebag-ring 64 which is in the form of 'a rectangular hollow frame providedwith a flange 65 to which the bag (3G is clamped by means of the band67.

Theadapter-plate 56 is further provided near each end with a resilientextension 68 terminating in a smoothly-polished convex portion 69adapted to contact with the floor and support the rear end of themachine. The forward portion of the machine is supportedv by a resilientmember 70 secured to the under side of each conduit 19 and provided witha convex-portion 71 adapted to contact with the 'floor coverings.

Figures 4 and 5 illustrate a suction cleaner with parts omitted and showa modified form of nozzle adjustment in which the forward side of eachfan chamber is provided with a boss 72 in which is firmly ixeda pin 73on which (is pivotally mounted a lever 74 one arm of which extendstoward the center of the machine and is bifurcated at the end as at 75,the other end being slotted as at 76 to receive a pin 77 mounted in aboss on the top of'portion 32. y

Secured to the rear wall of the suctionnozzle 25 by means of screws 78is a centrally screw-threaded block 79 adapted to receive a knurled-headthumb-screw 80, the stem portion of which passes through the overlappingbifurcated ends of the levers 74 and which operates to raise thesuction-nozzle when the screw is turned into the block.

In order to assist gravity in returning the sation-nozzle to the lowestposition, the screw 80 is surrounded by acompressionspring 81, one end.of which rests upon the block 79 .and the other abuts againstl a washer82 positioned on the screw 80 below the bifurcated ends of the levers.This spring normally tendsto *force the nozzle to its lowermostposition.

vI claim:

1. In a suction-cleaner, a motor, a pair of distinct suction-creatingfans each having a separate inlet conduitn a suction-nozzle having apair of discharge-conduits in m registry with said inletconduitsrespectively, said discharge and inlet conduits having complementalguide means to permit sliding movement of one with relation to theother, means for holding the ends of said discharge and inletscondnitstogether [in operative position, an adjusting screw, and means forconnecting said screw with said nozzle land said' fan casingrespectively to. ei'ect vertical adjustment ofsaid nozzle upon rotationof said screw.

2. In combination wlth a suction-cleaner a provided with two distinctsuction-creating xdevices'each having an inlet-conduit, a clean;ing-nozzle provided with two dischargepassages arranged symmetricallywith respect to the length thereof and registering with saidinlet-conduits, said cleaning-nozzle being held resiliently in contactlwith said inlet-conduits.

3. In combination with a suctionfcleaner provided with two distinctsuction-creating devices, each having an inlet-conduit, acleaning-nozzle provided with two discharge-passages arrangedsymmetrically with respect to the length thereof and registering withsaid inlet-conduits, the Y discharge-passages o said cleaning nozzlebeing provided with guides engagin the side-walls of saidinlet-conduitsand ing capable of relative movement therewith.

v ALBERT H. BATES.

